1
MHT CET 2023 10th May Evening Shift
+1
-0

In a vessel, the ideal gas is at a pressure $$\mathrm{P}$$. If the mass of all the molecules is halved and their speed is doubled, then resultant pressure of the gas will be

A
$$4 \mathrm{P}$$
B
$$2 \mathrm{P}$$
C
$$\mathrm{P}$$
D
$$\frac{\mathrm{P}}{2}$$
2
MHT CET 2023 10th May Morning Shift
+1
-0

The average force applied on the walls of a closed container depends on $$T^x$$ where $$T$$ is the temperature of an ideal gas. The value of '$$x$$' is

A
4
B
3
C
2
D
1
3
MHT CET 2023 10th May Morning Shift
+1
-0

A black body radiates maximum energy at wavelength '$$\lambda$$' and its emissive power is $$\mathrm{E}$$. Now due to change in temperature of that body, it radiates maximum energy at wavelength $$\frac{2 \lambda}{3}$$. At that temperature emissive power is

A
$$\frac{51 \mathrm{E}}{8}$$
B
$$\frac{81 \mathrm{E}}{16}$$
C
$$\frac{61 E}{27}$$
D
$$\frac{71 \mathrm{E}}{19}$$
4
MHT CET 2023 10th May Morning Shift
+1
-0

A Carnot engine with efficiency $$50 \%$$ takes heat from a source at $$600 \mathrm{~K}$$. To increase the efficiency to $$70 \%$$, keeping the temperature of the sink same, the new temperature of the source will be

A
$$360 \mathrm{~K}$$
B
$$1000 \mathrm{~K}$$
C
$$900 \mathrm{~K}$$
D
$$300 \mathrm{~K}$$
EXAM MAP
Medical
NEET